SimpleLinearEllipticSolver.hpp

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*/

#ifndef SIMPLELINEARELLIPTICSOLVER_HPP_
#define SIMPLELINEARELLIPTICSOLVER_HPP_

#include "AbstractAssemblerSolverHybrid.hpp"
#include "AbstractStaticLinearPdeSolver.hpp"
#include "AbstractLinearEllipticPde.hpp"

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM>
class SimpleLinearEllipticSolver
    : public AbstractAssemblerSolverHybrid<ELEMENT_DIM, SPACE_DIM, 1, NORMAL>,
      public AbstractStaticLinearPdeSolver<ELEMENT_DIM, SPACE_DIM, 1>
{
protected:

    AbstractLinearEllipticPde<ELEMENT_DIM,SPACE_DIM>* mpEllipticPde;

    virtual c_matrix<double, 1*(ELEMENT_DIM+1), 1*(ELEMENT_DIM+1)> ComputeMatrixTerm(
        c_vector<double, ELEMENT_DIM+1>& rPhi,
        c_matrix<double, SPACE_DIM, ELEMENT_DIM+1>& rGradPhi,
        ChastePoint<SPACE_DIM>& rX,
        c_vector<double,1>& rU,
        c_matrix<double,1,SPACE_DIM>& rGradU,
        Element<ELEMENT_DIM,SPACE_DIM>* pElement);

    virtual c_vector<double,1*(ELEMENT_DIM+1)> ComputeVectorTerm(
        c_vector<double, ELEMENT_DIM+1>& rPhi,
        c_matrix<double, SPACE_DIM, ELEMENT_DIM+1>& rGradPhi,
        ChastePoint<SPACE_DIM>& rX,
        c_vector<double,1>& rU,
        c_matrix<double,1,SPACE_DIM>& rGradU,
        Element<ELEMENT_DIM,SPACE_DIM>* pElement);


    // Note: does not have to provide a ComputeVectorSurfaceTerm for surface integrals,
    // the parent AbstractAssemblerSolverHybrid assumes natural Neumann BCs and uses a
    // NaturalNeumannSurfaceTermAssembler for assembling this part of the vector.

    void SetupLinearSystem(Vec currentSolution, bool computeMatrix)
    {
        this->SetupGivenLinearSystem(currentSolution, computeMatrix, this->mpLinearSystem);
    }

public:

    SimpleLinearEllipticSolver(AbstractTetrahedralMesh<ELEMENT_DIM,SPACE_DIM>* pMesh,
                               AbstractLinearEllipticPde<ELEMENT_DIM,SPACE_DIM>* pPde,
                               BoundaryConditionsContainer<ELEMENT_DIM,SPACE_DIM,1>* pBoundaryConditions);

    void InitialiseForSolve(Vec initialSolution = nullptr);
};

#endif /*SIMPLELINEARELLIPTICSOLVER_HPP_*/